Patent US2654630A successfully refreshed from Google Patents.
US2654630A
Expired / Lapsed
US
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Plate lifting clamp
Assignee: Individual
•
Filing: 1952-05-27
•
Granted: 1953-10-06
•
Expires: 1972-05-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Renfroe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:53
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/42; B66C1/44; B66C1/48; Y; Y10; Y10S; Y10S294/00; Y10S294/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE255744C
Cited
GB191308780A
Cited
US2360302A
Cited
US2360365A
Cited
US2360601A
Cited
US2543017A
Cited
US2446610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |